Stovepipe.



E. LOHSAND.

STOVEPIPE.

APPLICATION FILED JUNE 16,1906.

Patented July 6, 1909.

Z'rzzeaf Zo/asazza secure A v UNITED I STATES PATENT OFFICE.

ERNEST LOHSAND, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN OAN COMPANY,OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY. I

STOVEPIPE.

Specification of Letters Patent.

Patented July 6, 19.09.

Application filed June 16, 1906. Serial No. 321,969.

To all whom it may concern:

Be it known that I, ERNEs'r LOHSAND, a citizen of the United States,residing in Chicago, in the county of Cool; and State of Illinois, haveinvented a new and useful Improvement in Stovepipes, of which thefolowing 1s a specification.

My invention relates to improvements in the construction of stove pipes.

The obj eet of my invention is to provide a sectional or jointed stovepipe of a simple, strong, efficient 'and durable construction, capableof being cheaply and rapidly manufactured and the joints or sections ofwhich may be easily and conveniently put together and taken apart andtelescoped or adjustable in length as may be required, and which at thesame time will be tight against escape of smoke or gases and neat inappearance, and in which also the separate stove pipe sections may becontracted or expanded in diameter and nested one within another forhandling and shipment.

My invention consists in the means I employ to practically accomplishthis object or result. That is to say, it consists in a stove pipecomosed of a lurality of open and diametrical y expansib le andcontractible sections, each provided at one side seam edge with an openfold adapted to receive the adjoining side seam edge, said fold formingalso a stop for said adjoining edge, each section being also rovided atthe side seam at one end theme with a pair of clamping lips to receive athreaded clamp bolt, whereby, by Withdrawing the plain slde seam edgefrom the folded side seam edge, the section may be coiled or contracted.in diameter or expanded in diameter to permit a lurality of sections tobe nested one within t ie other for handling and shipment, and whereby,at

the same time the several sections-composing the stove pipe maybe easilyand conveniently ut together and rigidly and tightly d together so as toform a strong, stiff and tight pipe.

My invention also consists in the novel construction of parts anddevices and in the novel combinations of parts and devices herein shownand described.

In the accompanying drawing forming a part of this specification, Figure1 isa plan view of a length of stove ipe embodying my inventioncomprising a p urality of sections. Fig. 2 is a cross section on line 22of Fig. 1.

Fig. 3 is a cross section on line 3-3 of Fig. 1. Fig. 4 is a detailperspective view of one of the sections showing the side seam thereofopen or separated and Fig. 5 is a sectional view showing a number of thesections nested together for shipment.

In the drawing, A represents the stove pipe, the same comprising aplurality of open and diametrically contractible and expansiblecylindrical sections B. Each of the sections B at the side seam B hasone plain straight meeting edge I) and an o pos ng edge I) provided withan open fold b ormmg a recess or seat 6 to receive therein the o positeplain edge I) of the side seam. T e l'old b has a projecting lip b tofacilitate the entrance of the plain edge 1) within the fold. Eachsection B of the stove pipe is also provided at one end of the side seamwith a pair of integral clamping li s b b adapted to be bent at an angleto tie outer periphery of the pi e and firmly secured together by aclamp olt b which extends through holes 5 'in the clamping li s 12 foldb of the side seam, the pipe section B may be coiled orcontracted indiameter as indicatediin Fig. 5, so that a large number of pipe sectionsB may be nested one within another; and as the pipe sections B are openat the side seam, they may be also expanded to a larger diameter, thusenabling a very large number of the ipe sections to be nested togetherfor shlpment or handling.

When thus nested for shipment or handling,

the several pi e sections mutually rotect and stiflen one other so thatthere is little danger of their being collapsed or bent out of shape.

In putting the pipe sections B together to 105 form a continuous stovepipe of any desired length, the end of the section having no li sthereon is first inserted within the end of t, e adjoining sectionhaving the clamping lips,

the clamping lips being first bent at an angle no By withdrawing theplain edge I) from the on such adjoining section and then the clamp boltis inserted and the nut b turned home until the lip bearing end of theadjoining section firmly and tightly grips and clamps the end of thesection Within 1t, the collapse of the end of the interior sectionduring this operation being prevented by the abutment-of the plain edgeb against the shoulder 11* of the fold b of the side seam.

It is obvious that by the construction described, in which the clampinglips I) are formed from portions of the meeting edges of the pipesection, a material amount of the sheet metal required for the blank issaved,

While a compressing means, whereby the meeting edges may be drawntogether and whereby one pipe section may be compressed on thesucceeding section, is at the same time provided. r

I claim 1. A substantially cylindrical and diametrically eontractiblestove pipe section having telescoping meeting edges adapted to form aside seam, one of said meeting edges being cut to form a plain edge I)and a perforated lip b and the other of said meeting edges being cut andfolded to form a corresponding perforated lip b and an open fold b toreceive the edge I), all of said parts lying substantially in thecylindrical contour of the pipe, and the said lips being adapted to bebent outward and to receive a clamping bolt, as and forthe purposesdescribed.

21A substantially cylindrical and diametrically contractible stove pipesection having telescoping meeting edges adapted to form a side seam,one of said meeting edges being cut to form a plain edge I) and aperforated lip b and the other of said meeting edges being cut andfolded to form a perforated lip If and an open fold b to receive theedge I), the

said lips having formed across them grooves b all of said parts lyingsubstantially in the contour of the pipe, and the said lips beingadapted to be bent outward at the said grooves and to receive a clampingbolt, as and for the purposes described.

ERNEST LOI-ISAND.

Witnesses:

PEARL ABRAMS, H. M. MUNDAY.

